Hi, > Hi > > Am 15.09.22 um 16:41 schrieb Wang Yugui: > > Hi, > > > >> Hi > >> > >> Am 14.09.22 um 16:58 schrieb Wang Yugui: > >> [...] > >>>> 24-bit works on my G200HE and G200 test machines. Maybe the G200ER has a bug. > >>>> > >>>> When I try 16-bit depth, the display works, but is way too dark. No fiddling with the LUT tables fixes this. It's 90s hardware, so it should support 16-bit framebuffers well, but there's no obvious bug to be seen. > >>>> > >>>> I guess, we could remove 16 and 24 bit support for now if nothing else helps. > >>> > >>> > >>> maybe better if we revert 73f54d5d9682 (drm/mgag200: Remove special case > >>> for G200SE with <2 MiB) > >> > >> Could you please test the attached patch on the 6.0-rc3 kernel? It should force the driver to a correct color format if no kernel parameters are given. > >> > > > > This patch works well. > > I have meanwhile added the patch to drm-misc-fixes. We want to add a workaround for your machine to the driver. Can you please send me the output of > > sudo dmidecode -s system-manufacturer > > and > > sudo dmidecode -s system-product-name > DELL/T630 [root@T630 ~]# dmidecode -s system-manufacturer Dell Inc. [root@T630 ~]# dmidecode -s system-product-name PowerEdge T630 DELL/T620 [root@T620 ~]# dmidecode -s system-manufacturer Dell Inc. [root@T620 ~]# dmidecode -s system-product-name PowerEdge T620 Best Regards Wang Yugui (wangyugui@xxxxxxxxxxxx) 2022/09/20 > Best regards > Thomas > > > > > test case detail: > > kernel parm video is not given > > server DELL/T620 > > kernel is 6.0-rc5 > > > > Best Regards > > Wang Yugui (wangyugui@xxxxxxxxxxxx) > > 2022/09/15 > > > > > >> Best regards > >> Thomas > >> > >>> > >>> because there is no test result on device G200_SE > >>> > >>> static unsigned int mgag200_preferred_depth(struct mga_device *mdev) > >>> { > >>> if (IS_G200_SE(mdev) && mdev->vram_fb_available < (2048*1024)) > >>> return 16; > >>> else > >>> return 32; > >>> } > >>> > >>> Best Regards > >>> Wang Yugui (wangyugui@xxxxxxxxxxxx) > >>> 2022/09/14 > >>> > >> -- Thomas Zimmermann > >> Graphics Driver Developer > >> SUSE Software Solutions Germany GmbH > >> Maxfeldstr. 5, 90409 Nürnberg, Germany > >> (HRB 36809, AG Nürnberg) > >> Gesch?ftsführer: Ivo Totev > > > > > -- Thomas Zimmermann > Graphics Driver Developer > SUSE Software Solutions Germany GmbH > Maxfeldstr. 5, 90409 Nürnberg, Germany > (HRB 36809, AG Nürnberg) > Gesch?ftsführer: Ivo Totev